WorksheetsOrganizing the Elements
Total questions: 8
Worksheet time: 6mins
What is Mendeleev most known for?
Discovering a set of patterns that applied to all of the elements allowing him to predicts ones that had yet to be discovered.
Discovered that running a positive beam through a thin plate of gold would cause them to bounce off in different directions.
Discovered the elements air, wind, water and fire.
Discovered that each atoms had a nucleus and inside was a proton and a neutron.
What is the atomic mass of this element?
Xe
54
45
131.293
How is atomic mass measured?
asu
anu
amu
amm
What does AMU stand for?
atomic measure unit
atomic mass unit
atomic meter unit
atom mass unite
What is the atomic number?
131.293
54
45
Xe
What does the atomic number tell you?
How much an atom of the element weighs
How many protons and electrons are in the atom of the element
How many protons are in a molecule
The name of the element
How can the properties of an element be predicted?
By where they are found on earth
By the scientist who discovered them
By their discovery date
By their location on the periodic table
When comparing the periodic table to a calendar, periods are like ________ and groups are like _________.
days & weeks
weeks & days
months & days
days & months
